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Finding the Fourth Proportional to 560,218.28, 773,101.06 and 305,569.32

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Solution

The fourth proportional to 560,218.28, 773,101.06 and 305,569.32 is: 421,685.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,218.28 : 773,101.06 = 305,569.32 : x
  2. Step 2: Convert to fraction form
    560,218.28/773,101.06 = 305,569.32/x
  3. Step 3: Cross multiply
    560,218.28x = 773,101.06 × 305,569.32
  4. Step 4: Simplify right side
    560,218.28x = 236,235,965,195.48
  5. Step 5: Solve for x
    x = 236,235,965,195.48/560,218.28
  6. Step 6: Final answer
    x = 421,685.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.